Parameter Groups
‑267‑
When the detected motor speed is larger than the value of F9‑69 (Detection level
of speed error) for longer than the time set by F9‑70 (Detection time of speed
error), the AC drive reports the excessive speed deviation fault (E42.00) and acts
as selected by F9‑50 (Fault protection action selection 4).
If F9‑70 (Detection time of speed error) is set to 0.0s, the excessive speed
deviation detection function is s disabled.
The excessive speed deviation detection function is valid only in the FVC mode.
F9-70
Excessive speed deviation detection time
Address:
0xF946
Min.:
0
Unit:
s
Max.: 60 Data type: UInt16
Default:
5
Change: In real time
Value Range:
0.0s–60.0s
Description
When the detected motor speed is larger than the value of F9‑69 (Detection level
of speed error) for longer than the time set by F9‑70 (Detection time of speed
error), the AC drive reports the excessive speed deviation fault (E42.00) and acts
as selected by F9‑50 (Fault protection action selection 4).
If F9‑70 (Detection time of speed error) is set to 0.0s, the excessive speed
deviation detection function is disabled.
The excessive speed deviation detection function is valid only in the FVC mode.
F9-71
Power dip ride-through gain
Address:
0xF947
Min.:
0
Unit:
‑
Max.: 100 Data type: UInt16
Default:
40
Change: In real time
Value Range:
0–100
Description
This parameter is valid only in the "keep bus voltage constant" mode (F9‑59 = 1).
If undervoltage occurs frequently during power dip ride‑through, increase the
power dip ride‑through gain and integral coefficient.
F9-72
Power dip ride-through integral
Address:
0xF948
Min.:
0
Unit:
‑
Max.: 100 Data type: UInt16
Default:
30
Change: In real time
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